Money

So I am happily married but one aspect of my life is complicated....money. See I have three kids by my ex husband and I get child support which is not much for,three kids in the state of NJ. Well I have also have two by current husband and I pay for birthdays Christmas and all the holidays and the school supplies for the three oldest....so it's very hard to save money. I hate talking to him bc it always turns bad bc he doesn't understand why I can't save money. Now he wants to sit down and go through my bank statements for the new year and I am stressing out....bc I know it's going to go bad. I want to be honest and open about money I really do but I just don't want to fight and him to talk to me like an idiot....I need suggestions on how I should face this issue....